From 9fc1117cf8ca7a5100f2e86682cd4050a75f7f4d Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Tue, 4 Oct 2016 09:29:19 +0100 Subject: [PATCH] drm/i915: Data driven register to forcewake domains lookup Move finding the correct forcewake domains to take for register access from code to a mapping table. This will allow more interesting work in the following patches and is easier to review if singled out early. Signed-off-by: Tvrtko Ursulin Reviewed-by: Chris Wilson --- drivers/gpu/drm/i915/intel_uncore.c | 212 ++++++++++++++-------------- 1 file changed, 103 insertions(+), 109 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 7ae38165f1bb..6a0f5fdf6ad1 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -581,28 +581,52 @@ void assert_forcewakes_inactive(struct drm_i915_private *dev_priv) __fwd; \ }) -#define REG_RANGE(reg, start, end) ((reg) >= (start) && (reg) < (end)) +struct intel_forcewake_range +{ + u32 start; + u32 end; -#define FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x2000, 0x4000) || \ - REG_RANGE((reg), 0x5000, 0x8000) || \ - REG_RANGE((reg), 0xB000, 0x12000) || \ - REG_RANGE((reg), 0x2E000, 0x30000)) + enum forcewake_domains domains; +}; -#define FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x12000, 0x14000) || \ - REG_RANGE((reg), 0x22000, 0x24000) || \ - REG_RANGE((reg), 0x30000, 0x40000)) +static enum forcewake_domains +find_fw_domain(u32 offset, const struct intel_forcewake_range *ranges, + unsigned int num_ranges) +{ + unsigned int i; + struct intel_forcewake_range *entry = + (struct intel_forcewake_range *)ranges; + + for (i = 0; i < num_ranges; i++, entry++) { + if (offset >= entry->start && offset <= entry->end) + return entry->domains; + } + + return -1; +} + +#define GEN_FW_RANGE(s, e, d) \ + { .start = (s), .end = (e), .domains = (d) } + +static const struct intel_forcewake_range __vlv_fw_ranges[] = { + GEN_FW_RANGE(0x2000, 0x3fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x5000, 0x7fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0xb000, 0x11fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x2e000, 0x2ffff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_MEDIA), +}; #define __vlv_reg_read_fw_domains(offset) \ ({ \ enum forcewake_domains __fwd = 0; \ - if (!NEEDS_FORCE_WAKE(offset)) \ - __fwd = 0; \ - else if (FORCEWAKE_VLV_RENDER_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else if (FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_MEDIA; \ + if (NEEDS_FORCE_WAKE((offset))) { \ + __fwd = find_fw_domain(offset, __vlv_fw_ranges, \ + ARRAY_SIZE(__vlv_fw_ranges)); \ + if (__fwd == -1 ) \ + __fwd = 0; \ + } \ __fwd; \ }) @@ -636,104 +660,78 @@ static bool is_gen8_shadowed(u32 offset) __fwd; \ }) -#define FORCEWAKE_CHV_RENDER_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x2000, 0x4000) || \ - REG_RANGE((reg), 0x5200, 0x8000) || \ - REG_RANGE((reg), 0x8300, 0x8500) || \ - REG_RANGE((reg), 0xB000, 0xB480) || \ - REG_RANGE((reg), 0xE000, 0xE800)) - -#define FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x8800, 0x8900) || \ - REG_RANGE((reg), 0xD000, 0xD800) || \ - REG_RANGE((reg), 0x12000, 0x14000) || \ - REG_RANGE((reg), 0x1A000, 0x1C000) || \ - REG_RANGE((reg), 0x1E800, 0x1EA00) || \ - REG_RANGE((reg), 0x30000, 0x38000)) - -#define FORCEWAKE_CHV_COMMON_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x4000, 0x5000) || \ - REG_RANGE((reg), 0x8000, 0x8300) || \ - REG_RANGE((reg), 0x8500, 0x8600) || \ - REG_RANGE((reg), 0x9000, 0xB000) || \ - REG_RANGE((reg), 0xF000, 0x10000)) +static const struct intel_forcewake_range __chv_fw_ranges[] = { + GEN_FW_RANGE(0x2000, 0x3fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0xb000, 0xb47f, FORCEWAKE_RENDER), + GEN_FW_RANGE(0xe000, 0xe7ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x8800, 0x88ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0xd000, 0xd7ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x1a000, 0x1bfff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x1e800, 0x1e9ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x30000, 0x37fff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x4000, 0x4fff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x8000, 0x82ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x8500, 0x85ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x9000, 0xafff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), + GEN_FW_RANGE(0xf000, 0xffff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), +}; #define __chv_reg_read_fw_domains(offset) \ ({ \ enum forcewake_domains __fwd = 0; \ - if (!NEEDS_FORCE_WAKE(offset)) \ - __fwd = 0; \ - else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_MEDIA; \ - else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ + if (NEEDS_FORCE_WAKE((offset))) { \ + __fwd = find_fw_domain(offset, __chv_fw_ranges, \ + ARRAY_SIZE(__chv_fw_ranges)); \ + if (__fwd == -1 ) \ + __fwd = 0; \ + } \ __fwd; \ }) #define __chv_reg_write_fw_domains(offset) \ ({ \ enum forcewake_domains __fwd = 0; \ - if (!NEEDS_FORCE_WAKE(offset) || is_gen8_shadowed(offset)) \ - __fwd = 0; \ - else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_MEDIA; \ - else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ + if (NEEDS_FORCE_WAKE((offset)) && !is_gen8_shadowed(offset)) { \ + __fwd = find_fw_domain(offset, __chv_fw_ranges, \ + ARRAY_SIZE(__chv_fw_ranges)); \ + if (__fwd == -1 ) \ + __fwd = 0; \ + } \ __fwd; \ }) -#define FORCEWAKE_GEN9_UNCORE_RANGE_OFFSET(reg) \ - REG_RANGE((reg), 0xB00, 0x2000) - -#define FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x2000, 0x2700) || \ - REG_RANGE((reg), 0x3000, 0x4000) || \ - REG_RANGE((reg), 0x5200, 0x8000) || \ - REG_RANGE((reg), 0x8140, 0x8160) || \ - REG_RANGE((reg), 0x8300, 0x8500) || \ - REG_RANGE((reg), 0x8C00, 0x8D00) || \ - REG_RANGE((reg), 0xB000, 0xB480) || \ - REG_RANGE((reg), 0xE000, 0xE900) || \ - REG_RANGE((reg), 0x24400, 0x24800)) - -#define FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(reg) \ - (REG_RANGE((reg), 0x8130, 0x8140) || \ - REG_RANGE((reg), 0x8800, 0x8A00) || \ - REG_RANGE((reg), 0xD000, 0xD800) || \ - REG_RANGE((reg), 0x12000, 0x14000) || \ - REG_RANGE((reg), 0x1A000, 0x1EA00) || \ - REG_RANGE((reg), 0x30000, 0x40000)) - -#define FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(reg) \ - REG_RANGE((reg), 0x9400, 0x9800) - -#define FORCEWAKE_GEN9_BLITTER_RANGE_OFFSET(reg) \ - ((reg) < 0x40000 && \ - !FORCEWAKE_GEN9_UNCORE_RANGE_OFFSET(reg) && \ - !FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(reg) && \ - !FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(reg) && \ - !FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(reg)) - -#define SKL_NEEDS_FORCE_WAKE(reg) \ - ((reg) < 0x40000 && !FORCEWAKE_GEN9_UNCORE_RANGE_OFFSET(reg)) +static const struct intel_forcewake_range __gen9_fw_ranges[] = { + GEN_FW_RANGE(0xb00, 0x1fff, 0), /* uncore range */ + GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x8140, 0x815f, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x8c00, 0x8cff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0xb000, 0xb47f, FORCEWAKE_RENDER), + GEN_FW_RANGE(0xe000, 0xe8ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x24400, 0x247ff, FORCEWAKE_RENDER), + GEN_FW_RANGE(0x9400, 0x97ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x8130, 0x813f, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x8800, 0x89ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0xd000, 0xd7ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x1a000, 0x1e9ff, FORCEWAKE_MEDIA), + GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_MEDIA), +}; #define __gen9_reg_read_fw_domains(offset) \ ({ \ - enum forcewake_domains __fwd; \ - if (!SKL_NEEDS_FORCE_WAKE(offset)) \ - __fwd = 0; \ - else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_MEDIA; \ - else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ - else \ - __fwd = FORCEWAKE_BLITTER; \ + enum forcewake_domains __fwd = 0; \ + if (NEEDS_FORCE_WAKE((offset))) { \ + __fwd = find_fw_domain(offset, __gen9_fw_ranges, \ + ARRAY_SIZE(__gen9_fw_ranges)); \ + if (__fwd == -1 ) \ + __fwd = FORCEWAKE_BLITTER; \ + } \ __fwd; \ }) @@ -759,17 +757,13 @@ static bool is_gen9_shadowed(u32 offset) #define __gen9_reg_write_fw_domains(offset) \ ({ \ - enum forcewake_domains __fwd; \ - if (!SKL_NEEDS_FORCE_WAKE(offset) || is_gen9_shadowed(offset)) \ - __fwd = 0; \ - else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_MEDIA; \ - else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(offset)) \ - __fwd = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \ - else \ - __fwd = FORCEWAKE_BLITTER; \ + enum forcewake_domains __fwd = 0; \ + if (NEEDS_FORCE_WAKE((offset)) && !is_gen9_shadowed(offset)) { \ + __fwd = find_fw_domain(offset, __gen9_fw_ranges, \ + ARRAY_SIZE(__gen9_fw_ranges)); \ + if (__fwd == -1 ) \ + __fwd = FORCEWAKE_BLITTER; \ + } \ __fwd; \ })